diff --git a/Zend/zend_execute_API.c b/Zend/zend_execute_API.c
index f5d08f1f0de..048e0af967a 100644
--- a/Zend/zend_execute_API.c
+++ b/Zend/zend_execute_API.c
@@ -1238,7 +1238,7 @@ static void zend_set_timeout_ex(zend_long seconds, int reset_signals) /* {{{ */
 		timer, so we could end up with just an ignored timeout. Instead
 		delete and recreate. */
 	if (NULL != tq_timer) {
-		if (!DeleteTimerQueueTimer(NULL, tq_timer, NULL)) {
+		if (!DeleteTimerQueueTimer(NULL, tq_timer, INVALID_HANDLE_VALUE)) {
 			tq_timer = NULL;
 			zend_error_noreturn(E_ERROR, "Could not delete queued timer");
 			return;
@@ -1312,7 +1312,7 @@ void zend_unset_timeout(void) /* {{{ */
 {
 #ifdef ZEND_WIN32
 	if (NULL != tq_timer) {
-		if (!DeleteTimerQueueTimer(NULL, tq_timer, NULL)) {
+		if (!DeleteTimerQueueTimer(NULL, tq_timer, INVALID_HANDLE_VALUE)) {
 			EG(timed_out) = 0;
 			tq_timer = NULL;
 			zend_error_noreturn(E_ERROR, "Could not delete queued timer");